28105065

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{20147}}^1$

素因数の和:20189

約数の個数: 24

約数和(自身を含む): 50289408

約数和(自身を除く): 22184343

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 155, 279, 465, 1395, 20147, 60441, 100735, 181323, 302205, 624557, 906615, 1873671, 3122785, 5621013, 9368355, 28105065]

約数ペア:

[(1, 28105065), (3, 9368355), (5, 5621013), (9, 3122785), (15, 1873671), (31, 906615), (45, 624557), (93, 302205), (155, 181323), (279, 100735), (465, 60441), (1395, 20147)]